Diplomacy, for recruiting creatures of levels 1 and 2.

Actually, the idea has merit. Currently, the main stacks that appear in the final stages usually consist of archons, monarchs, and skeletons. In the future, stacks like 500 pikemen, 900 master gremlins, 250 dwarves, etc., could compete with them. This would add variety to the strategies, at the very least, and provide additional interest.